Android 广播（Android 10）

迈不过友情╰ 2023-07-01 13:59 124阅读 0赞

adb shell am broadcast -a “com.mingrisoft” “com.example.myapplication”

### 代码实现 ###

AndroidManifest.xml

#### 静态注册 ####

<?xml version="1.0" encoding="utf-8"?>
    <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.example.myapplication">
    
        <uses-permission android:name="android.permission.BROADCAST_STICKY" />
        <application android:allowBackup="true" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:roundIcon="@mipmap/ic_launcher_round" android:supportsRtl="true" android:theme="@style/AppTheme">
            <activity android:name=".MainActivity" android:label="@string/app_name" android:theme="@style/AppTheme.NoActionBar">
                <intent-filter>
                    <action android:name="android.intent.action.MAIN" />
    
                    <category android:name="android.intent.category.LAUNCHER" />
                </intent-filter>
            </activity>
            <receiver android:name=".MyReciever" android:exported="true" android:enabled="true">
                <intent-filter>
                    <action android:name="com.mingrisoft"></action>
                    <action android:name="mingrisoft"></action>
                </intent-filter>
            </receiver>
        </application>
    
    </manifest>

MyReciever.java

package com.example.myapplication;
    
    import android.content.BroadcastReceiver;
    import android.content.Context;
    import android.content.Intent;
    import android.widget.Toast;
    
    public class MyReciever extends BroadcastReceiver { 
        private final static String TAG = MyReciever.class.getName();
        @Override
        public void onReceive(Context context, Intent intent) { 
            Toast.makeText(context,"Recieve",Toast.LENGTH_LONG).show();
        }
    }

MyApplication.java  
**intent.setPackage(“com.example.myapplication”);**

package com.example.myapplication;
    
    import android.content.Intent;
    import android.os.Bundle;
    
    import com.google.android.material.floatingactionbutton.FloatingActionButton;
    import com.google.android.material.snackbar.Snackbar;
    
    import androidx.appcompat.app.AppCompatActivity;
    import androidx.appcompat.widget.Toolbar;
    
    import android.view.View;
    import android.view.Menu;
    import android.view.MenuItem;
    
    public class MainActivity extends AppCompatActivity { 
    
        @Override
        protected void onCreate(Bundle savedInstanceState) { 
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
            Toolbar toolbar = findViewById(R.id.toolbar);
            setSupportActionBar(toolbar);
    
            FloatingActionButton fab = findViewById(R.id.fab);
            fab.setOnClickListener(new View.OnClickListener() { 
                @Override
                public void onClick(View view) { 
                  /* Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG) .setAction("Action", null).show();*/
                    Intent intent = new Intent();
                    intent.setAction("com.mingrisoft");
                    intent.setPackage("com.example.myapplication");
                    sendStickyBroadcast(intent);
                }
            });
        }
    
        @Override
        public boolean onCreateOptionsMenu(Menu menu) { 
            // Inflate the menu; this adds items to the action bar if it is present.
            getMenuInflater().inflate(R.menu.menu_main, menu);
            return true;
        }
    
        @Override
        public boolean onOptionsItemSelected(MenuItem item) { 
            // Handle action bar item clicks here. The action bar will
            // automatically handle clicks on the Home/Up button, so long
            // as you specify a parent activity in AndroidManifest.xml.
            int id = item.getItemId();
    
            //noinspection SimplifiableIfStatement
            if (id == R.id.action_settings) { 
                return true;
            }
    
            return super.onOptionsItemSelected(item);
        }
    }

动态注册的例子

#### 动态注册 ####

1153          // Register for broadcasts from other components of the system.
    1154          IntentFilter filter = new IntentFilter();
    1155          filter.addAction(Intent.ACTION_BATTERY_CHANGED);
    1156          filter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY);
    1157          mContext.registerReceiver(new BatteryReceiver(), filter, null, mHandler);

4344      @VisibleForTesting
    4345      final class BatteryReceiver extends BroadcastReceiver { 
    4346          @Override
    4347          public void onReceive(Context context, Intent intent) { 
    4348              synchronized (mLock) { 
    4349                  handleBatteryStateChangedLocked();
    4350              }
    4351          }
    4352      }

### 公众号 ###

![在这里插入图片描述][20200623011127232.jpg]

[20200623011127232.jpg]: https://img-blog.csdnimg.cn/20200623011127232.jpg